2021 BMW M3 3.0 BiTurbo Competition

Overview

• Make: BMW
• Model: M3
• Trim: Competition
• Version: 3.0 BiTurbo Competition Steptronic RWD Euro 6 (s/s) 4dr (503 bhp)
• Year: 2021
• Mileage: 25,000 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 503 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Rear-wheel drive
• Colour: Yellow
• CO2: 231 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 BMW M3 Competition is 25,000 miles. Its asking price of £54,000 is £791 below the AskCar estimate of £54,791. To work out the AskCar estimate, we analyse UK dealer adverts for 756 BMW M3 cars across different ages and specifications. We first recorded this advert 147 days ago, and its asking price has since fallen by £2,000. Its advertised mileage matches the government's MOT record. It is advertised by Whitethor Cars in Coalville. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £791 (1%) under the AskCar estimate of £54,791.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 756 priced BMW M3 adverts across different ages and specifications, as of 2 November 2026.

A 2021 BMW M3 with the 3.0 petrol engine is typically advertised at £53,500: the median of the 42 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 BMW M3 has been on sale for at least 147 days.

Price history

AskCar first saw this advert on 8 June 2026 at £56,000. Its asking price is now £54,000, £2,000 less. The latest price cut was seen on 22 October 2026.

Price changes recorded:

• 9 June 2026: £56,000
• 10 June 2026: £56,750
• 6 August 2026: £56,000
• 22 October 2026: £54,000

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 5 March 2027.

It has had 4 MOTs. The latest, on 6 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 23,799 miles, which matches the advertised 25,000 miles.

Advertised mileage is about 1,900 miles lower than the median mileage of a 2021 BMW M3 on AskCar.

Similar cars

37 other 2021 BMW M3 Competition 3.0 petrol automatic saloons are for sale at UK dealers, from £42,989 to £78,999, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 24,535 miles. Price: £54,295, £295 more than this car. Dealer: MotorClass Premium Vehicles in Wigan. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-4855976b59f3
• 2021 BMW M3 Competition, 3.0 petrol saloon, red. Mileage: 23,225 miles. Price: £56,990, £2,990 more than this car. Dealer: Sycamore BMW in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-a17b3b35dcb3
• 2021 BMW M3 Competition, 3.0 petrol saloon, grey. Mileage: 26,926 miles. Price: £55,999, £1,999 more than this car. Dealer: Sandles Cars in King's Lynn. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-1cf1688899dc

• The nearest: 2021 BMW M3 Competition, 3.0 petrol saloon, green, 27 miles from this car. Mileage: 5,000 miles. Price: £77,450, £23,450 more than this car. Dealer: Digbeth Motor Sales in Birmingham. AskCar page: https://askcar.co.uk/car/bmw-m3-2021-306110aa649a